摘要
本文提出了一个辨识异步电动机速度的模型参考自适应系统(MRAS)。根据异步电动机的数学模型,经过一定的变换,利用易于检测到的电机的定子电压和定子电流获得了电机速度的模型参考自适应辨识算法。该方法算法简单,具有较高的精度,为采用低成本的单片机实现提供了必要的条件。仿真结果表明,转速在全速度范围内都有较好的辨识精度。
A model-reference adaptive system (MRAS) for the identification of induction motor speed is proposed in this paper. According to a transformed form of a mathematical model of induction motor,a model-reference adaptive speed identification algorithm is obtained by using easily-measured motor stator voltage and current. The algorithm is simple,and it have a higher accuracy. It provides a prerequisite for the implementation using a low cost single-chip microprocessor. Simulation result shows that the speed have a better identification accuracy in the whole range.
出处
《电气传动》
北大核心
1996年第2期2-4,21,共4页
Electric Drive
